Improvement of fruit quality by inhibiting production of...

C - Chemistry – Metallurgy – 12 – N

Patent

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C12N 15/53 (2006.01) A01H 5/00 (2006.01) A01H 5/08 (2006.01) C12N 9/02 (2006.01) C12N 15/11 (2006.01) C12N 15/82 (2006.01)

Patent

CA 2234107

The present invention relates generally to a transgenic fruit-bearing plant having a foreign nucleotide sequence inserted therein which is substantially similar to a portion of the plant's fruit ripening specific lipoxygenase cDNA. Transgenic plants according to the present invention produce fruits having modified and surprinsingly superior ripening characteristics, including improved quality and texture, greater firmness, longer shelf life, better packaging and storage characteristics and improved processing characteristics. Also provided are transgenic fruits; transgenic plant cells; methods for making inventive transgenic plants, fruits and plant cells; methods for inhibiting lipoxygenase production in plants; isolated nucleotide sequences; and vectors comprising these isolated nucleotide sequences.

Végétal transgénique fructifère présentant une séquence nucléotidique étrangère qui y a été insérée et qui est sensiblement similaire à une partie de l'ADNc de lipoxygénase spécifique du mûrissement du fruit du végétal. Les végétaux transgéniques selon l'invention produisent des fruits dont les caractéristiques de mûrissement sont modifiées et étonnamment supérieures notamment sur le plan de la qualité et de la texture, de consistance, de la conservation à l'étalage, de l'aptitude au conditionnement et au stockage et de l'aptitude à la transformation. L'invention porte également sur des fruits transgéniques, des cellules végétales transgéniques, des méthodes de production de végétaux, fruits et cellules végétales transgéniques d'un nouveau type, sur des méthodes d'inhibition de la production de lipoxygénases chez les végétaux, sur des séquences nucléotidiques isolées; et sur des vecteurs comprenant de telles séquences nucléotidiques isolées.

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